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A decrease in pressure, just as a rise in temperature, can melt materials, specifically rocks in this case. Therefore, decompression melting takes place as a result of less pressure being exerted on rocks. This occurrance is common at mid-ocean ridges where rocks are uplifted and consequently have less overburden.
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What causes melting of material under divergent plate boundaries Is it melting of rock recompression of rock freezing of rock or decompression of rock?
Melting of material under divergent plate boundaries is primarily caused by decompression of rock as tectonic plates move apart, reducing pressure on the underlying mantle and allowing rock to melt. This process creates magma that rises to the surface, forming new crust along the mid-ocean ridges.
Is the following sentence true or false when solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
True. When solid mantle rock rises during seafloor spreading, the decrease in pressure causes decompression melting, resulting in the production of magma. This magma can then rise to the surface and form new oceanic crust.
How is decompression melting triggered?
Decompression melting occurs when the pressure on hot rock is reduced, causing it to melt due to the decrease in pressure. This can happen as tectonic plates move apart, creating a reduction in pressure on the underlying mantle rocks, leading to partial melting and the formation of magma.
When solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
Yes, during seafloor spreading, when solid mantle rock rises due to plate tectonic forces, it experiences reduced pressure which leads to decompression melting. This process produces magma that eventually erupts onto the seafloor, creating new oceanic crust.
What do you call the temperature at which a solid changes to a liquid?
This is the melting point.
Which two processes commonly generate magma?
decompression melting and wet melting (the addition of volatiles) :)
What is decompression melting how it relates to Earths internal convection?
Decompression melting occurs when a decrease in pressure on a mantle rock causes it to melt without an increase in temperature. This process is related to Earth's internal convection because rising mantle material undergoes decompression as it moves towards the surface, leading to melting and the formation of magma chambers.
What causes melting of material under divergent plate boundaries Is it melting of rock recompression of rock freezing of rock or decompression of rock?
Melting of material under divergent plate boundaries is primarily caused by decompression of rock as tectonic plates move apart, reducing pressure on the underlying mantle and allowing rock to melt. This process creates magma that rises to the surface, forming new crust along the mid-ocean ridges.
What is the primary process involved in the formation of magma at a rift?
Decompression melting of extremely hot mantle rock as it rises toward the surface.
How does magma form?
Magma can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
Explain how scientist tink most magma is formed?
Magma is formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantel rock.
What cause inside the earth to melt?
Heat. Molten rock can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
Is the main mechanism for melting decompression melting of ultramafic mantle rock?
Yes, the main mechanism for melting in decompression melting involves ultramafic mantle rock. As tectonic plates move apart, the pressure on the mantle rock decreases, allowing it to melt at higher temperatures. This process is primarily responsible for the generation of magma at mid-ocean ridges and other divergent boundaries. The resulting melt is typically basaltic in composition, originating from the ultramafic materials found in the upper mantle.
Mafic magma is generated at divergent boundaries because of?
Mafic magma is generated at divergent boundaries because of decompression melting caused by the upwelling of hot mantle material due to the pulling apart of tectonic plates. As the plates move away from each other, the decrease in pressure enables the mantle material to melt and form mafic magma.
Is the following sentence true or false when solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
True. When solid mantle rock rises during seafloor spreading, the decrease in pressure causes decompression melting, resulting in the production of magma. This magma can then rise to the surface and form new oceanic crust.
How is decompression melting triggered?
Decompression melting occurs when the pressure on hot rock is reduced, causing it to melt due to the decrease in pressure. This can happen as tectonic plates move apart, creating a reduction in pressure on the underlying mantle rocks, leading to partial melting and the formation of magma.
When solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
Yes, during seafloor spreading, when solid mantle rock rises due to plate tectonic forces, it experiences reduced pressure which leads to decompression melting. This process produces magma that eventually erupts onto the seafloor, creating new oceanic crust.
